Test W+RWC+sync+addr-po-rfi+sync

PPC W+RWC+sync+addr-po-rfi+sync
"SyncdWW Rfe DpAddrdR PodRW Rfi Fre SyncdWR Fre"
Prefetch=1:a=T,2:x=T
Com=Rf Fr Fr
Orig=SyncdWW Rfe DpAddrdR PodRW Rfi Fre SyncdWR Fre
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=z; 1:r7=a;
2:r2=a; 2:r4=x;
}
 P0           | P1            | P2           ;
 li r1,1      | lwz r1,0(r2)  | li r1,2      ;
 stw r1,0(r2) | xor r3,r1,r1  | stw r1,0(r2) ;
 sync         | lwzx r4,r3,r5 | sync         ;
 li r3,1      | li r6,1       | lwz r3,0(r4) ;
 stw r3,0(r4) | stw r6,0(r7)  |              ;
              | lwz r8,0(r7)  |              ;
exists
(a=2 /\ 1:r1=1 /\ 1:r8=1 /\ 2:r3=0)